INTERNAL COOLING SYSTEM AND METHOD FOR SEGMENTED BATTERY 

MODULES MOUNTED WITHIN AN ELECTRIC VEHICLE  

A system or method for individualized coolant flow to each of a plurality of energy storage devices 10 housed in an electric vehicle. Each energy storage device 10 includes a heat exchanger 11 coupled in thermal conductivity with a segmented battery module 13. The segmented battery module 13 includes battery cells 13B and sensors (13C, 13D, and 13E). The heat exchanger 11 includes an HE flow controller 11C. Individual sensor information for each energy storage device 10 is collected via the BMU 13A of each segmented battery module 13. The internal SCC 16 uses this individual sensor information to calculate the HE flow rate of coolant pumped through each energy storage device's 10 heat exchanger 11 to cool the battery cells 13B of the energy storage device 10. Coolant delivered to the heat exchangers 11 is cooled by an internal cooling unit 14 during each charging session, and can also be cooled by the internal cooling unit 14 during motorized operation of the electric vehicle.